required attendee becomes optional attendee

One of our users put a distribution group in the required field while trying to schedule a meeting. When I open the Tracking for that meeting it shows the group as "Required Attendee" but it also shows each user of that group listed individually as "Optional Attendee". What causes this to happen? User is using Microsoft Outlook 2007.

Well, you can right click the "optional" icon and select required to fix the problem. Assuming you are more interested in getting each individual user to automatically list as required though, correct?

Well, you can right click the "optional" icon and select required to fix the problem. Assuming you are more interested in getting each individual user to automatically list as required though, correct?

Are you unable to connect or configure Hotmail email account in Microsoft Outlook 2010, 2007? Or Outlook.com emails are not downloading to Outlook? Lets’ see the problem and resolve Outlook Connector error syncing folder hierarchy (0x8004102A).

This Experts Exchange video Micro Tutorial shows how to tell Microsoft Office that a word is NOT spelled correctly. Microsoft Office has a built-in, main dictionary that is shared by Office apps, including Excel, Outlook, PowerPoint, and Word. When …

This video shows how to remove a single email address from the Outlook 2010 Auto Suggestion memory.
NOTE: For Outlook 2016 and 2013 perform the exact same steps.
Open a new email: Click the New email button in Outlook.
Start typing the address: …